Apparatus for refitting disk valves.



No. 637,249. Patented Nov. 2l, |899.

C. F. HALL.

APPARATUS FOR REFITTING DISK VALVES.

(Application filed Nov. 25, 189B.:

2 Sheets-Sheet I if@ W ATTOHN EY No. 637,249. Patented Nov. 2|, |899. c.F. HALL.

APPARATUS FOR BEFITTING DISK VALVES.

(Application led Nov. 25, 1898.)

(Nc Model.)

WlTNES'SES: n NVENTOR ATTORNEY UNITED STATES PATENT OFFICE. 'V

CHARLES F. HALL, OF SKANEA'IELES, NEW YORK.

APPARATUS FOR REFITTING DISK VALVES.

SPECIFICATION forming part of Letters Patent N 0. 637,249, datedNovember 21, 1899. Application filed November 25, 1898. Serial No.697,389. (No model.)

To @ZZ whom it may concern:

Be it known that LCHARLES F. HALL, a citizen of the United States ofAmerica, and a resident of Skaneateles, county of Onondaga,

and State of New York, have invented certain new and useful Improvementsin Apparatus for Rettting Disk Valves, of which the following is aspecification.

My invention relates to milling apparatus to be worked by hand forretting disk valves and their seats, especially gate-Valves; and itconsists, essentially, of the milling-tool and its drivingr apparatusadapted for both the valves and the seats.

It also consists of improvements'in various details of the apparatus, ashereinafter described, reference being made to the accompanyingdrawings, in which Figure l is a side elevation of the apparatus forreiitting the seats of gate-valves, with a part in section. Fig. 2 is aplan view of the apparatus of Fig. l adapted for retitting thevalve-disks. Fig. 3 is a top view, and Fig. 4 a sideelevation, partlybroken out, of a gate- Valve case and means for attaching the apparatusfor rctitting the seats, with parts in section. Fig. 5 is a frontelevation of the seatretting apparatus modified as to the driving-gear.Fig. 6 is a side elevation of the apparatus of Fig. 5. Fig. 7 is an endelevation, and Fig. S a side elevation, of the apparatus of Fig. 2adapted for retitting the valve-disks, the post or stock of Fig. 7 beingin cross-section.

In the construction of my improved apparatus I provide Arsta post orstock a., such as may be inserted in the mouth b of the Valvecase c,with the milling-tool cl, mounted upon one of its sides near one endsuitably to rotate in a plane parallel with the longitudinal plane ofthe post and so as to be geared with the crank-shaft e, similarlymounted near the upper end of the post, and I gear the said milling-tooland crank-shaft together in any approved way for rotating said tool, asby the train of toothed wheels f or by abelt or chain g, with suitablepulleys h on the milling-tool and crank-shaft, respectively, and I alsogear the crank-shaft with another crank-shaft i by apair ofbevel-'wheels j, the latter crank-shaft being set in the end of the postfor enabling the crank-shaft to be turned in aplane at right angles tothat of the crank-shaft e for more conveniently using the apparatus inthe positions of Figs; 7 and 8 for retting the valvedisks 7c.

For securing the apparatus in the valvecase c to refit the seats Z across-bar m is attached to the post to be clamped on the flange n bysuitable clamps o p or other like appliances, and to set up themilling-tool d to the Work a bearing disk or bar q is employed to restagainst the opposite seat Z as a base, from which to obtain pressureagainst the tool, said disk being slidable on the stud-pin s, with alever 2f and a set-screwA u to apply the pressure, the stud-pin beingattached to the back of the stock coincident with the aXis of themilling-tool, the lever pivoted to lugs also on the back of the stockand above the stud-pin, and the adjusting-screw attached to the back ofthe stock a suitable distance above the milling-tool for location abovethe mouth of the valve-case when the millingtool is in the workingposition.

For using the apparatus for retting disk valves, as k, a base o isprovided, on which the disks may be secured by keys fw or other approvedmeans, said base having a yoke 0, carrying a pivot center ,e over thecenter of the base. The stock a has a pivot y, on which themilling-tools and the terminal wheel of the drivi'ng-trainf turn, andpivot y is screwthreaded in the stock a and provided with a hand-Wheel afor feeding the milling-tool. The pivot center e is adjustable to followthe pivot and maintain the proper stress on the milling-tool.

The yoke oc and the post a are in this appli-4 cation coupled by across-bar b and arms c for staying one by the other.

When the chain or a belt is used for driving the milling-tool,adjustable tightening-pulleys d will be employed to maintain propertension of the same.

An emery or other grinding wheel may be used instead of themilling-cutter represented, if desired.

I claim- V I 1. In valve-reitting apparatus, the combination of a postor stock, a rotary milling-tool mounted on one side of said post orstock near one end with its axis in transverse relation to thelengthwise direction of the post or stock,

a crank-shaft mounted at the other end of said post or stock parallelwith the axis ofthe milling-tool, said milling-tool'and crank-shaftgeared together for driving the milling-tool, and means for clamping thelnilling-tool on the face of the part to be reitted consisting of thebearing-disk, stud-pin, lever and adjusting-screw constructedsubstantially as described.

2. In valve-retting apparatus, the combination of a post or stock, arotary milling-tool mounted on one side of said post or stock near oneend with its axis in transverse relation t-o the lengthwise direction ofthe post or stock, a crank-shaft mounted at the other end of Said postor stock parallel with the axis of the milling-tool, said milling-tooland crankshaft geared together fordriving the millingtool, anotherdriving-crank mounted on the end of the post or stock with its axis inthe lengthwise direction of the post or stock and geared with thefirst-mentioned crank-shaft, and means for clamping the milling-tool onthe face of the part to be relitted substantially Vas described.

3. In valve-reftting apparatus, the combination of a post or stock, arotary milling-tool mounted on one side of said post or stock near oneend with its axis in transverse relation to the lengthwise direction ofthe post or stock, a crank-shaft mounted at the other end of said postor stock parallel with the axis ot' the milling-tool, said milling-tooland crankshaft geared together foi-driving themillingtool, the bar andbolts to clamp the post or stock in the valve-case with the milling-toolin operative relation to the valve-seat, and means for clamping themilling-tool on the face of said seat suitably for refitting itconsistingof the bearing-disk, stud-pin, lever and adjusting-screwconstructed substantially as described.

4. In valve-reitting apparatus, the combination of a post orstock, arotary milling-tool mounted on one side of said postorstock near one endwith its axis in transverse relation to the lengthwise direction of thepost or stock, a crank-shaft mounted at the other end of said post orstock parallel with the axis of the milling-tool, said milling-tool andcran k-shaft geared together for driving the milling-tool, the bar andbolts to clamp the post or stock in the Valve-case, with themilling-tool in 0perative relation to the valve-seat, and means forclamping the milling-tool onthe face of said seat consisting of thedisk-base, studpin, lever and set-screw constructed substantially asdescribed.

5. In Valve-refitting apparatus, the combination of a post or stock, arotary milling-tool mounted on one side of said post orstock near oneend with its axis in transverse relation to the lengthwise direction ofthe post or stock, a crank-shaft mounted at the other end of said postor stock parallel with the axis of the milling-tool, said milling-tooland crank-shaft geared together for driving the milling-tool, anotherdriving crank-shaft mounted on the end of the post or stock with itsaxis in the lengthwise direction of the post or stock and geared withthe first-mentioned crank-shaft, and means for clamping the milling-toolon the face of the part to be refitted, consisting of the base-disk,yoke, and centering feedscrew, said yoke having stayconnections with across-bar attached to the post or stock substantially as described.

Signed by me, at New York, N. Y., this 4th day of March, 1898.

CHARLES F. I'IALL.

Witnesses:

HARRY C. WALLACE, G. C. DURsToN.

